US3982447A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Convoluted rotor structures
Assignee: Johns Hopkins University
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Filing: 1975-09-02
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Granted: 1976-09-28
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Expires: 1995-09-02
Abstract
Abstract A rotary energy storage device formed of discrete annular rings of anisotropic filamentary material disposed within the rings in a "wound" configuration, the upper and lower edges of each ring being attached alternately to the edges on adjacent rings in a radial orientation to form a structure having a bellows-like or convoluted cross-section. The present structure, due to the convoluted nature of the joined rings, is subject to unusually low radial stress within the material when rotating.
Inventors
- 👤 David W. Rabenhorst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 02:51
CPC Classifications
F; F16; F16F; F16F15/00; F16F15/30; F16F15/305; Y; Y02; Y02E; Y02E60/00; Y02E60/16; Y10; Y10T; Y10T74/00; Y10T74/21; Y10T74/2117; Y10T74/2119; Y10T74/212
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
53 words
An inertial energy storage device for rotation about a shaft, comprising: rim means carried on the shaft and comprised of a plurality of substantially concentric ring elements formed of essentially anisotropic material having substantial tensile strength along longitudinal axes thereof; and, means for holding alternate adjacent edges of the concentric ring elements together.
Claim 2
Dependent Claim
53 words
An inertial energy storage device for rotation about a shaft, comprising: rim means carried on the shaft and comprised of a plurality of substantially concentric ring elements formed of essentially anisotropic material having substantial tensile strength along longitudinal axes thereof; and, means for holding alternate adjacent edges of the concentric ring elements together.
Claim 3
Dependent Claim
34 words
The inertial energy storage device of claim 1 and further comprising spoke means extending from and joined to the shaft and annular hub means connected to the spoke means for carrying the rim means.
Claim 4
Dependent Claim
19 words
The inertial energy storage rotor device of claim 1 wherein said ring elements are formed of fiber composite material.
Claim 5
Dependent Claim
16 words
The inertial energy storage rotor device of claim 3 wherein said ring elements comprise filament windings.
Claim 6
Dependent Claim
16 words
The inertial energy storage rotor device of claim 3 wherein said ring elements are discrete rings.
Claim 7
Dependent Claim
18 words
The inertial energy storage rotor device of claim 1 wherein the ring elements have ballast material disposed therebetween.
Claim 8
Dependent Claim
45 words
The inertial energy storage rotor device of claim 6 wherein ring elements disposed relatively more near to the shaft have greater amounts of ballast material disposed therebetween than do those ring elements located within the structure at a relatively greater radial distance from the shaft.
Claim 9
Dependent Claim
26 words
The inertial energy storage device of claim 1 wherein the means for holding the alternate adjacent edges of the concentric ring elements together comprise adhesive material.
Claim 10
Dependent Claim
20 words
The inertial energy storage device of claim 8 wherein the holding means further comprise annular bands adhering to the edges.
Claim 11
Dependent Claim
19 words
The inertial energy storage device of claim 9 wherein the annular bands are comprised of windings of filamentary material.
References Cited (Backward Citations)
US3296886A
Cited
US3602067A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-09-28 | 1980-03-29 | 1980-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-09-28 | 1984-03-29 | 1984-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-09-28 | 1988-03-29 | 1988-09-28 | $7700.00 | Window Closed / Lapsed |